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Is proxyquire ESM-only? Can you require() it?

Proxies nodejs require in order to allow overriding dependencies during testing.

Last verified Sep 9, 2026 against proxyquire@2.1.3. JSON

CommonJS CommonJS — require() works on every Node.js version

proxyquire ships CommonJS only. require("proxyquire") works everywhere. import "proxyquire" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

Latest
2.1.3 (Aug 12, 2019)
Module format
CommonJS
Last CommonJS version
2.1.3
TypeScript types
@types/proxyquire
Node engines
not declared
Weekly downloads
1.2M
License
MIT

Does proxyquire@2.1.3 actually load? Runtime test results

Installed and executed on Sep 9, 2026 with require("proxyquire") from a CommonJS file and import "proxyquire" from an ES module.

Runtimerequire("proxyquire")import "proxyquire"
Node.js 18✓ works✓ works
Node.js 20✓ works✓ works
Node.js 22✓ works✓ works
Node.js 24✓ works✓ works
Node.js 26✓ works✓ works
Bun 1.4✓ works✓ works

How to import proxyquire

ES modules (import)

import proxyquire from "proxyquire";

Named imports from a CommonJS package only work when Node.js can statically detect them. If a named import fails, use the default import and destructure.

CommonJS (require)

const proxyquire = require("proxyquire");

Module format by version

Derived from the type, main and exports fields of every stable release on npm (48 versions; the newest 48 shown).

VersionsFormatFirst published
0.0.2 – 2.1.3CommonJSJul 8, 2012

Frequently asked

Is proxyquire ESM-only?

proxyquire@2.1.3 is a CommonJS package. proxyquire ships CommonJS only. require("proxyquire") works everywhere. import "proxyquire" also works because Node.js and Bun can import CommonJS from ES modules, but only the default export is guaranteed; named imports depend on Node's static analysis of the module.

Can I import proxyquire with ES module syntax?

Yes. import proxyquire from "proxyquire" works in Node.js and Bun because they support importing CommonJS modules. Named imports work only when Node.js can statically detect the exports.

Does proxyquire work in Bun?

Yes. import "proxyquire" loaded successfully in Bun 1.4 on Sep 9, 2026.

Does proxyquire ship TypeScript types?

Not bundled. Install the community types with "npm install -D @types/proxyquire".

Links

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